201919004

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{919}}^1$

素因数の和:1015

約数の個数: 72

約数和(自身を含む): 440496000

約数和(自身を除く): 238576996

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 59, 76, 98, 118, 133, 196, 236, 266, 413, 532, 826, 919, 931, 1121, 1652, 1838, 1862, 2242, 2891, 3676, 3724, 4484, 5782, 6433, 7847, 11564, 12866, 15694, 17461, 25732, 31388, 34922, 45031, 54221, 54929, 69844, 90062, 108442, 109858, 122227, 180124, 216884, 219716, 244454, 379547, 488908, 759094, 855589, 1030199, 1518188, 1711178, 2060398, 2656829, 3422356, 4120796, 5313658, 7211393, 10627316, 14422786, 28845572, 50479751, 100959502, 201919004]

約数ペア:

[(1, 201919004), (2, 100959502), (4, 50479751), (7, 28845572), (14, 14422786), (19, 10627316), (28, 7211393), (38, 5313658), (49, 4120796), (59, 3422356), (76, 2656829), (98, 2060398), (118, 1711178), (133, 1518188), (196, 1030199), (236, 855589), (266, 759094), (413, 488908), (532, 379547), (826, 244454), (919, 219716), (931, 216884), (1121, 180124), (1652, 122227), (1838, 109858), (1862, 108442), (2242, 90062), (2891, 69844), (3676, 54929), (3724, 54221), (4484, 45031), (5782, 34922), (6433, 31388), (7847, 25732), (11564, 17461), (12866, 15694)]